No Communication to VICS Module (No Fitting of VICS)
Your vehicle's main computer can't talk to the VICS (Vehicle Information and Communication System) module, like a phone with no signal to its receiver. This is a communication network failure, not a sensor or part malfunction.
The main ECU periodically sends handshake signals to the VICS module over the CAN bus network and expects acknowledgment responses within a set timeout window. If no valid response is received after multiple polling attempts, the ECU logs this communication fault.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| CAN Bus Communication Response Time | < 500 ms response to module ping | No response or timeout > 1000 ms |
| Module Presence Detection | Module responds to ID polling | Module fails to respond to ECU queries |
Code B2202 is a low-severity fault. Your vehicle is generally safe to drive to a workshop for diagnosis. However, do not ignore it indefinitely — low-severity codes often indicate developing problems that become expensive if neglected. Book a diagnostic appointment within 2–4 weeks. If you notice any additional symptoms (rough running, power loss, unusual smells), treat it as higher priority.
Once the fault is repaired, B2202 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.